function showsubmenu(sid){
	var othersid = [1,2,3,4,5,6,7];
	whichEl = eval("submenu" + sid);
	for(i=0;i<othersid.length;i++){
	imgmenu = eval("imgmenu" + othersid[i]);
		if(sid==othersid[i]){
			if (whichEl.style.display == "none"){
				eval("submenu" + sid + ".style.display=\"\";");
				imgmenu.background="images/main_47.gif";
			}
			else{
				eval("submenu" + sid + ".style.display=\"none\";");
				imgmenu.background="images/main_48.gif";
			}
		}else{
			eval("submenu" + othersid[i] + ".style.display=\"none\";");
			imgmenu.background="images/main_48.gif";
		}
	}
		
}
